Minimally Invasive Mitral Valve Annuloplasty with Realignment of Both Papillary Muscles for Correction of Type IIIb Functional Mitral Regurgitation

Author(s):  
Evaldas Girdauskas ◽  
Lenard Conradi ◽  
Eva Karolina Harmel ◽  
Hermann Reichenspurner

Objective Pathophysiological background of type IIIb functional mitral regurgitation (FMR) is a progressively increasing distance between papillary muscle tips and mitral annular plane. Standard surgical treatment of such FMR by means of undersized mitral annuloplasty is associated with a high recurrence rate. Methods We propose a modified subannular maneuver to correct type IIIb FMR while combining undersized annuloplasty with a controlled realignment of both papillary muscles, thereby fixing the distance between mitral annular plane and papillary muscle tips. The differences of this subannular maneuver as compared with the previously published techniques are the following: (1) controlled realignment of both papillary muscles, (2) fixation of the papillary muscles to mitral annulus distance on an annuloplasty ring, and (3) application in a three-dimensional endoscopic minithoracotomy setting. Results We describe a surgical technique of minimally invasive mitral valve repair performed due to severe type IIIb FMR, which includes a modified subannular maneuver to realign both papillary muscles. Preliminary results of the first 10 patients who underwent this procedure at our institution are presented. There was no in-hospital mortality and follow-up echocardiography (mean ± SD echocardiographic follow-up = 10 ± 6 months) demonstrated stable functional results. Conclusions Our initial experience indicates that adding of this subannular maneuver to the standard annuloplasty and thereby fixing the distance between papillary muscles and mitral annular plane have a potential to improve results of surgical FMR treatment.

2019 ◽  
Vol 56 (5) ◽  
pp. 968-975 ◽  
Author(s):  
Jonas Pausch ◽  
Eva Harmel ◽  
Christoph Sinning ◽  
Hermann Reichenspurner ◽  
Evaldas Girdauskas

Abstract OBJECTIVES Subannular repair techniques in addition to undersized ring annuloplasty have been developed to address high mitral regurgitation (MR) recurrence rates after mitral valve repair in type IIIb MR. We compared the results of annuloplasty with simultaneous standardized subannular repair versus isolated annuloplasty, focusing on the periprocedural outcomes of minimally invasive procedures. METHODS A consecutive series of 108 patients with type IIIb functional MR with severe signs of bileaflet tethering underwent an annuloplasty + subannular repair (group A; n = 60) versus isolated annuloplasty (group B; n = 48). The primary end point of this prospective, parallel cohort study was death or recurrent MR >2, 1 year postoperatively. The secondary end points were survival and clinical outcomes, with special regard for the minimally invasively treated subgroups. RESULTS Duration of surgery, cardiopulmonary bypass time and aortic cross-clamp time were comparable between both study groups. Procedural outcomes as well as echocardiographic outcome parameters were similar and independent of access (fully endoscopic versus full sternotomy). At the 12-month follow-up, death or MR >2 occurred in 3.3% (2/60) of patients in group A vs in 20.8% (10/48) of patients in group B (P = 0.037). The overall mortality rate during the follow-up period was 1.7% (1/60) in group A vs 12.5% (6/48) in group B (P = 0.041). CONCLUSIONS Standardized realignment of papillary muscles is feasible and reproducible via a minimally invasive approach, resulting in excellent periprocedural outcomes, and has a clear potential to significantly decrease MR recurrence and improve 1-year outcomes compared to isolated annuloplasty.


2011 ◽  
Vol 14 (4) ◽  
pp. 232 ◽  
Author(s):  
Orlando Santana ◽  
Joseph Lamelas

<p><b>Objective:</b> We retrospectively evaluated the results of an edge-to-edge repair (Alfieri stitch) of the mitral valve performed via a transaortic approach in patients who were undergoing minimally invasive aortic valve replacement.</p><p><b>Methods:</b> From January 2010 to September 2010, 6 patients underwent minimally invasive edge-to-edge repair of the mitral valve via a transaortic approach with concomitant aortic valve replacement. The patients were considered to be candidates for this procedure if they were deemed by the surgeon to be high-risk for a double valve procedure and if on preoperative transesophageal echocardiogram the mitral regurgitation jet originated from the middle portion (A2/P2 segments) of the mitral valve.</p><p><b>Results:</b> There was no operative mortality. Mean cardiopulmonary bypass time was 137 minutes, and mean cross-clamp time was 111 minutes. There was a significant improvement in the mean mitral regurgitation grade, with a mean of 3.8 preoperatively and 0.8 postoperatively. The ejection fraction remained stable, with mean preoperative and postoperative ejection fractions of 43.3% and 47.5%, respectively. Follow-up transthoracic echocardiograms obtained at a mean of 33 days postoperatively (range, 8-108 days) showed no significant worsening of mitral regurgitation.</p><p><b>Conclusion:</b> Transaortic repair of the mitral valve is feasible in patients undergoing minimally invasive aortic valve replacement.</p>


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
T Benito Gonzalez ◽  
X Freixa ◽  
C Godino ◽  
M Taramasso ◽  
R Estevez-Loureiro ◽  
...  

Abstract Background Limited information has been reported regarding the impact of percutaneous mitral valve repair (PMVR) on ventricular arrhythmic (VA) burden. The aim of this study was to address the incidence of VA and appropriate antitachycardia implantable cardiac defibrillator (ICD) therapies before and after PMVR. Methods We retrospectively analyzed all consecutive patients with heart failure with reduce left ventricular ejection fraction, functional mitral regurgitation grade 3+ or 4+ and an active ICD or cardiac resynchronizer who underwent PMVR in any of the eleven recruiting centers. Only patients with complete available device VA monitoring from one-year before to one year after PMVR were included. Baseline clinical and echocardiographic characteristics were collected before PMVR and at 12-months follow-up. Results 93 patients (68.2±10.9 years old, male 88.2%) were enrolled. PMVR was successfully performed in all patients and device success at discharge was 91.4%. At 12-months follow-up, we observed a significant reduction in mitral regurgitation severity, NT-proBNP and prevalence of severe pulmonary hypertension and severe kidney disease. Patients also referred a significant improvement in NYHA functional class and showed a non-significant trend to reserve left ventricular remodeling. After PMVR a significant decrease in the incidence of non-sustained ventricular tachycardia (VT) (5.0–17.8 vs 2.7–13.5, p=0.002), sustained VT or ventricular fibrillation (0.9–2.5 vs 0.5–2.9, p=0.012) and ICD antitachycardia therapies (2.5–12.0 vs 0.9–5.0, p=0.033) were observed. Conclusion PMVR was related to a reduction in arrhythmic burden and ICD therapies in our cohort. Proportion of patients who presented ven Funding Acknowledgement Type of funding source: None


Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Raphaël Fontaine ◽  
Denis Bouchard ◽  
Philippe Demers ◽  
Raymond Cartier ◽  
Michel Carrier ◽  
...  

Introduction: Chronic ischemic mitral regurgitation (MR) has been associated with poor long-term survival. Suboptimal midterm results have been a growing concern in the surgical community. In recent years, our approach to repair those valves has evolved to a standardized technique using complete, rigid and small annuloplasty rings. This study aims to compare this systematic approach with our prior experience from 1996 –2001 where recurrent MR rate was high. Methods: 129 patients underwent repair for pure ischemic mitral valve regurgitation between 2002 and 2005 at our institution. Of these patients, 99 had clinical and echographic follow-up. These patients were compared to the 1996 –2001 cohort of 73 patients. Results: Preoperatively, 84% of patients were in NYHA class III or IV, 17% had moderate MR, 83% had moderate-severe to severe MR. Sixteen were redo operations, mostly of previous CABG. All patients except one were treated with a complete rigid ring (Annuloflo 46.5%, Physioring 34.9%, Etlogix 13.9%, others 3.8%). Ring size was: 24 (0.8%); 26 (55.8%); 28 (38%); or 30 (4.5%). Mortality was 8.5% at 30 days, 14.7% at 1 year and 17.8% at 2 years. Immediate postoperative regurgitation was absent or trace in all patients. Freedom from reoperation was 97%. Mean postoperative NYHA class was 1.15 at a mean follow-up of 28 months. Recurrent moderate mitral regurgitation (2+) was 15.34%, severe mitral regurgitation (3+ to 4+) was 13.4% at a mean follow-up of 16 months. In the 73 patients from the period 1996 –2001 at the same echo follow-up time, the moderate and severe recurrence were: 37% and 21%. The decrease in the recurrence rate was highly significant (p=0.001). Conclusion: A more standardized approach to ischemic mitral valve repair has improved the high recurrence rate previously reported by our group. Long-term follow-up is necessary to confirm these findings.


2019 ◽  
Author(s):  
M. von Stumm ◽  
T. Sequeira ◽  
F. Dudde ◽  
C. Sinning ◽  
H. Reichenspurner ◽  
...  

2019 ◽  
Vol 68 (06) ◽  
pp. 470-477
Author(s):  
Konstantinos Sideris ◽  
Johannes Boehm ◽  
Bernhard Voss ◽  
Thomas Guenther ◽  
Ruediger S. Lange ◽  
...  

Abstract Background Three-dimensional saddle-shaped annuloplasty rings have been shown to create a larger surface of leaflet coaptation in mitral valve repair (MVR) for functional mitral regurgitation (FMR) and degenerative mitral regurgitation (DMR) which may increase repair durability. For the first time, this study reports mid-term results after MVR for DMR and FMR using a rigid three-dimensional ring (Profile 3D, Medtronic). Methods Between June 2009 and June 2012, 369 patients with DMR (n = 326) or FMR (n = 43) underwent MVR (mean age 62.3 ± 12.6 years). A total of 205 patients (55.6%) underwent isolated MVR and 164 patients (44.4%) a combined procedure. Follow-up examinations were performed in 94.9% (mean 4.9 ± 0.9 years). Echocardiographic assessment was complete in 93.2% (mean 4.3 ± 1.2 years). Results The 30-day mortality was 1.5% (5/326) for DMR (1.5% for isolated and 1.6% for combined procedures) and 9.3% (4/43) for FMR (0% for isolated and 10.5% for combined procedures). Survival at 6 years was 92.1 ± 1.9% for DMR (92.9 ± 2.6% for isolated and 90.7 ± 2.7% for combined procedures) and 66.4 ± 7.9% for FMR (80.0 ± 17.9% for isolated and 63.7 ± 8.9% for combined procedures). Cumulative risk for mitral valve-related reoperation at 6 years was 0% for FMR and 7.1 ± 1.5% for DMR. At echocardiographic follow-up, one patient presented with mitral regurgitation (MR) more than moderate. The only predictor of recurrent MR after MVR for DMR was residual mild MR at discharge. Conclusion Repair of FMR with the three-dimensional Profile 3D annuloplasty ring shows excellent mid-term results with regard to recurrence of MR. In cases of DMR, the results are conforming to the current literature.


Author(s):  
Giuseppe Speziale ◽  
Marco Moscarelli

Mitral valve regurgitation may require complex repair techniques that are challenging in minimally invasive and may expose patients to prolonged cardiopulmonary bypass and cross-clamp times. Here, we present a stepwise operative approach that may facilitate the repair of the mitral valve in a minimally invasive fashion and may be carried out even when multiple posterior segments are involved. This how-to-do article presents a method that was performed in 148 patients that were referred to our institution for severe organic mitral regurgitation between 2008 and 2016. At mean ± SD follow-up of 45.5 ± 27 months, freedom from recurrent of mitral regurgitation 2+ or greater and reoperation was 95.2%.


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